Draft-yoke for railway-cars.



H. F SCHWARTZENBERG. DRAFT YOKE FOR RAILWAY CARS.

APPLICATION FILED MAR- 9.1914.

' Patented A r-.20, 1915 "tnarrnn rnir rion HARRY F.

SCHW'ARTZENBEBG, OF CHICAGO, ILLINOIS, ASSIGNOR '].0 WILLIAM H.

' MINER, OF'CHICAGQ, ILLINOIS.

nears-roan non RAILWAY-CABS.

Specification bf Letters Patent.

Patented Apr. 2@, 1915.

Application filed March 9, 1914;. $eria1 No. 823,283.

To all whom iz'may concern:

Be it known that I, HARRY F. SCHWART- znnnnno, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Draft- Yokes for Railway-Cars, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in draft yokes for railway cars, and more par 'ticularly draft yokes for tandem-arranged draft gear.

In tandem draft gear, as is well understood, a plurality, preferably two, separated compression resisting members are placed in tandem arrangement within a yoke member, the yoke member being prov ded with a lateral opening for each compression resisting member. In such arrangement the portion of the yoke forming the front recess to receive the front compression resisting .member is employed in compressing both compression resisting members in pulling as well as in bufling action of the draft rigging, while the members of the yoke rearwardly thereof are employed only in pulling movement of the draft rigging to compress the rear compression resisting member of the draft gear. In buffing action the rear compression resisting member is compressed by the bar or thimble or separating member within yoke disposed between the front and rear compression resisting members.

As the shocks in buffing movement are arranged draft gears is required to bear more severe shocks and strains than the rear portion of yokes employed with tandem-arranged draft gear.

The object of my invention is to provide a draft yoke in which the weight and strength of the forward. and rearward por- 'tions thereof may bevmore nearly in proportion to the shocks and strains they are relftnired to bear than in constructions heretofore known and employed.

In the drawings forming a part of this specification, Figure 1 is a plan view of a draft yoke embodying my invention; Fig. 2 is a side elevation partly in vertical longitudinal section on line 2-2 of Fig. 1; Fig.

than the strain in pulling movement, the forward portion of the yoke 1n tandemlower limbs 7 and 8, respectively, a trans verse member 9 rearwardly connecting said limbs and preferably integral therewith, the

said limbs 7 and 8 each being preferably provided along their outer edges with 1ongitudinal, preferably integral reinforcing ribs 10l0. At their forward ends the said limbs are joined at either edge by the preferably integral side plates 11-11, forming \vith the limbs 7 and 8 a hollow box-like opening 13 to receive a draw-bar, the said plateshaving transverse perforations 12-12 to receive a coupler key to engage the yoketo a draw-bar. The connecting member 9 at the rear end of the limbs 7 and 8 is preferably provided with a forward bearin post 15 and a rearward bearing post 16, each of said posts having preferably an opening 17 therein and a transverse space 18 between them. At its rear end the forward member 5 of the yoke is provided with upper and lower rearwardly opening slots 19 and 20, respectively, to receive the free. ends of the limbs 21 and 22 of the U-shaped rear mcmher 6 of the yoke, each of said limbs being provided near its forward end with a per foration 23 registering with adjacent perforations 24-2-1 in the connecting member 9 of the forward member 5 of the yoke to re ceive therivets 2525 which connect the rear member-6 to the forward member 5 of the yoke. .In preferable construction the rear member 6 is provided with the filler block 26, which is secured to the connecting member 27 between the limbs 21 and 22 by the rivet 28 passing therethrough. T'nis there is formed a transverse opening 2t 0 receive the rear compression resisting memher and a transverse opening 30 to receive the front compression resisting member of a tandem-arranged. draft gear. In preferable construction the front member 5 is of cast 1 of which is provided with upper and lower ing through said members to hold the st limbs connected by an integral hollow post connected with the first named member. open on the sides thereof, said member being horizontally slotted at the ends of said post, HARRY SCHWARTZENBERG" 5 the other of said members comprising a U- Witnesses:

shaped strap having the free ends thereof se- ARLINE R. ARNOLD,

cured in said slots, and short rivets extend- CARRIE G. RANz. 

